How long does USPS take? Delivery times for every service

How long does Media Mail take?

4 to 7 days within the lower 48 states. Media Mail is part of Package Services (DMM 173.2.1), and since Jul 1, 2025 the federal rule for that group says “a 4- to 7-day service standard applies to end-to-end Package Services pieces” (39 CFR 121.4(a)(1)). USPS's service comparison page lists Media Mail as “Shipping in 2–8 Days” (USPS service comparison, Compare Mail Services). That 2 to 8 range is the one Package Services had before the change: the Federal Register notice says end-to-end Package Services within the lower 48 “will have a 4-7-day service standard instead of the current 3-10-day standard for USPS Marketing Mail and a 2-8-day standard for Package Services” (90 FR 10861). The rewritten regulation, Package Services included, took effect on Jul 1, 2025 (90 FR 10857, Dates).

• How the days are set for one ZIP Code pair: the regulation builds Media Mail's days from First-Class Mail's, “with the standard generally equaling the sum of 2 days plus the applicable Single-Piece First-Class Mail (FCM) service standard”, “after adding 5-9 hours to the applicable driving time bands of Leg 2 for FCM” (39 CFR 121.4(a)(1)). In plain terms: about a stamped letter's days between the same two ZIP Codes plus 2, and sometimes a day less, because the wider drive-time bands can drop a pair into a faster band. How a letter's days are counted is under First-Class Mail.
• Looking up your own ZIP Code: USPS's Transit Time Map has no "Media Mail" choice. Media Mail is a Package Services subclass, so pick "Package Services" there.
• Alaska, Hawaii and the territories: “For certain end-to-end Package Services pieces originating and/or destinating outside the contiguous 48 states, an 11- to 29-day service standard applies” (39 CFR 121.4(a)(2)). USPS's comparison page adds: “The timeliness of service to or from destinations outside the contiguous U.S. may be affected by the limited availability of transportation.” (USPS service comparison, footnote 6)
• No guarantee: “Media Mail and Library Mail are subclasses of Package Services. The USPS does not guarantee the delivery of Media Mail or Library Mail within a specified time.” (DMM 173.2.1)
• Library Mail and Bound Printed Matter get the same days: USPS's fact sheet groups them together as “Package Services (Bound Printed Matter, Media Mail, and Library Mail)” (USPS service standard fact sheet, key points), and the 4 to 7-day rule above covers all end-to-end Package Services (mail you hand to USPS where you are, as opposed to commercial mail entered at a destination post office or plant, which has its own standards in 39 CFR 121.4(b)).
• Day 7 can still be on time: USPS says “Missing Mail search requests can be submitted starting 7 days from mailing.” (USPS Missing Mail page, Submit a Missing Mail Search Request) Day 7 is also the longest Media Mail standard for any pair of lower-48 ZIP Codes, so a package still moving that day may not be late yet; the expected delivery date for your own ZIP Code pair says for sure. How to file: USPS Missing Mail search.
• What to tell buyers: plan on 7 days of transit inside the lower 48 on top of your handling time, and weeks for Alaska, Hawaii and the territories. If 7 days is too long for a sale, USPS Ground Advantage runs 2 to 5 days. Prices and what qualifies: Media Mail rates; packing books: the cheapest way to ship books.

USPS Ground Advantage delivery time

2 to 5 days. USPS's page says “Ground Advantage packages are delivered in 2-5 days” (USPS Ground Advantage page, Features & Pricing), and its 2025 fact sheet on the service standard changes says “The current Service Standard day range for USPS Ground Advantage of 2-5 days is staying the same.” (USPS service standard fact sheet, key points) It isn't guaranteed: “USPS does not guarantee delivery of USPS Ground Advantage — Commercial mailpieces within a specified time.” (DMM 283.3.1)

• No regulation sets it: the 2025 Federal Register rule mentions “competitive package services, including Priority Mail and USPS Ground Advantage” (90 FR 10860) and says the impact on them “is not addressed in this rulemaking, which impacts market-dominant products only” (90 FR 10860). So the Ground Advantage and Priority Mail ranges here come from USPS's own pages and the Domestic Mail Manual, not 39 CFR Part 121.
• Inside one region it can be 2 or 3 days: USPS's July 2025 announcement says “Turnaround volume of single-piece First-Class Mail and USPS Ground Advantage will receive a two- or three-day service standard.” (USPS news release, Jul 1, 2025, list of July 1 changes) "Turnaround" is mail that starts and ends inside one processing facility's area; USPS's FAQ puts it as “USPS Ground Advantage also has 2- or 3-day intra-RPDC service.” (USPS service standard FAQs, Q9). An RPDC is one of USPS's regional processing and distribution centers. The same announcement widened where each day band applies: “This will increase the reach of two-, three- and four-day service standards for First-Class Mail and USPS Ground Advantage.” (USPS news release, Jul 1, 2025, list of July 1 changes)
• From a far-off post office, a day more: USPS lists this among its April 1, 2025 changes: “Added one day to service standard for Ground Advantage and single piece FCM products originating in offices servicing ZIP Codes more than 50 miles from the origin RPDC.” (USPS service standard FAQs, Q7)
• Alaska, Hawaii, Puerto Rico and the territories, since Oct 1, 2026: USPS's PostalPro notice says “USPS Ground Advantage packages between the contiguous United States and the following locations will have a 10-day or more service expectation” (USPS PostalPro notice, Sep 25, 2026, USPS Ground Advantage): Alaska, Hawaii, American Samoa, Puerto Rico, the U.S. Virgin Islands, Guam, the Northern Mariana Islands and the Freely Associated States (Micronesia, the Marshall Islands and Palau). It adds “Most transit days have been adjusted, and some service expectations may be significantly longer than 10 days.” (USPS PostalPro notice, Sep 25, 2026, USPS Ground Advantage) On how the packages travel: “USPS Ground Advantage products under one pound to and from noncontiguous locations were previously transported via both air and surface.” (USPS PostalPro notice, Sep 25, 2026, USPS Ground Advantage) “Regardless of weight, noncontiguous USPS Ground Advantage packages will now primarily utilize surface transportation.” (USPS PostalPro notice, Sep 25, 2026, USPS Ground Advantage) The product page also says “Packages going to certain places (including Alaska, Hawaii, and offshore destinations), or containing hazardous materials may receive slower service.” (USPS Ground Advantage page, footnote 1)
• Under 1 lb and over 1 lb are separate entries on USPS's Transit Time Map, and its note says “For any USPS Ground Advantage packages that contain HAZMAT, the service standards for USPS Ground Advantage Over 1 lb - 70 lbs apply.” (USPS Transit Time Map, page text)
• Long or odd-shaped boxes can be slower: certain Ground Advantage pieces, “such as pieces containing hazardous material or considered nonstandard (e.g., oversized priced pieces and nonstandard fee-priced pieces), may receive deferred handling” (DMM 283.3.1). One trigger for the nonstandard fee is length: “If your package is between 22 and 30 inches long” (USPS service comparison, Nonstandard Fee).
• Prices by weight and zone: Ground Advantage rates.

Priority Mail delivery time

2 to 3 days, not guaranteed. USPS's page says “Priority Mail service includes tracking and delivery in 2-3 days” (USPS Priority Mail page, intro), and the Domestic Mail Manual says “Service objectives for delivery are 2 to 3 days. However, USPS does not guarantee the delivery time.” (DMM 123.2.1) The date shown when you buy the label “is based on origin, destination, and drop-off time” (USPS Priority Mail page, footnote 1), and “The expected delivery date does not come with a money-back guarantee.” (USPS Priority Mail page, footnote 1)

• Some pieces get slower handling: “Certain Priority Mail mailpieces, such as pieces containing hazardous material or considered nonstandard (e.g., oversized-priced pieces and nonstandard fee-priced pieces), may receive deferred handling.” (DMM 123.2.1)
• Priority Mail Next Day is for contract shippers: “Only available for Negotiated Service Agreement holders via the Click-N-Ship application. Participating ZIP Code pairings only.” (USPS Priority Mail page, Priority Mail Next Day footnote) It can “reach homes and businesses within 150 miles of participating USPS locations” (USPS Priority Mail page, For Businesses), and “With Priority Mail Next Day, the expected delivery date reflects a delivery time of 1 business day” (USPS Priority Mail page, Priority Mail Next Day footnote).
• Alaska, Hawaii and the territories, since Oct 1, 2026: 2 to 4 days to or from Alaska, Hawaii, American Samoa, Puerto Rico and the U.S. Virgin Islands, and 2 to 6 days to or from Guam, the Northern Mariana Islands and the Freely Associated States (Micronesia, the Marshall Islands and Palau). USPS's PostalPro notice: “Priority Mail packages to or from the following locations will receive a 2 to 4-day service expectation: Alaska, Hawaii, American Samoa, Puerto Rico and United States Virgin Islands.” (USPS PostalPro notice, Sep 25, 2026, Priority Mail) “Priority Mail packages to or from the following locations will receive a 2 to 6-day service expectation: Guam, Northern Mariana Islands and the Freely Associated States.” (USPS PostalPro notice, Sep 25, 2026, Priority Mail) Before, USPS says, “The service expectation was previously capped at 3 days” (USPS PostalPro notice, Sep 25, 2026, Priority Mail). These are expectations, not guarantees; for one shipment, the expected delivery date at label purchase gives the day.
• Christmas 2026: USPS's recommended send-by date for Priority Mail in the lower 48 is Friday, Dec 18, 2026 (USPS 2026 holiday deadlines).

Priority Mail Express delivery time and guarantee

1, 2 or 3 days, by 6 p.m., with a money-back guarantee. “Priority Mail Express offers delivery in 1, 2, or 3 delivery days depending on various factors, including the date on which the item is deemed accepted by the Postal Service” (DMM 113.4.2.1). “Items are delivered by 6 p.m. on the scheduled delivery day.” (DMM 113.4.2.3) The 3-day standard dates from April 1, 2025: the Federal Register notice says “Priority Mail Express delivery service will have a 1-day, 2-day, or 3-day service standard” (90 FR 14339), and USPS's FAQ adds “Prior to this change, Priority Mail Express had a 1- or 2-day service standard.” (USPS service standard FAQs, Q14)

• The cutoff matters: “Priority Mail Express items mailed after the local Post Office mail-acceptance time are deemed to have been mailed on the next day the office is open” (DMM 113.4.2.2).
• Sundays and holidays: “Priority Mail Express delivers 7 days a week, 365 days a year (with limited exceptions)” (USPS service comparison, Compare Mail Services). A guaranteed Sunday or holiday date costs extra: “Delivery guaranteed for a Sunday or holiday is charged a premium fee” (DMM 113.1.5), which is $12.50 in the price list in force since Oct 4, 2026 (Notice 123), retail and commercial. “Customers not desiring delivery on a Sunday or a holiday may avoid the premium by opting for guaranteed delivery on the subsequent delivery day.” (DMM 113.1.5) USPS's page says “Sunday and holiday delivery available in many major markets for an additional fee” (USPS Priority Mail Express page, Features & Pricing).
• If it's late: “USPS refunds the postage and Sunday or holiday premium fee” (DMM 604.9.5.1) when an item isn't delivered, isn't attempted or isn't available by the date and time given at mailing. Apply no sooner than 2 days and no later than 30 days after mailing; the same table gives 30 to 60 days for Priority Mail Express with an extra service (DMM 604, Exhibit 9.2.1). USPS's page says “submit a refund request for failure of service within 30 days of the mailing date” (USPS Priority Mail Express page, Requesting a Refund).
• No late-delivery refund to or from Alaska or Hawaii: one of the listed exceptions is “The postage refund requested is other than for loss, and the Priority Mail Express mailpiece was destined to or originated from Alaska or Hawaii.” (DMM 604.9.5.5) Two more apply the same loss-only limit when “the Priority Mail Express piece was destined to or originated from Guam, American Samoa, or the Commonwealth of the Northern Mariana Islands”, or was “destined to the Republic of Palau, the Republic of the Marshall Islands, or the Federated States of Micronesia” (DMM 604.9.5.5). USPS's holiday page dates the change in a footnote on Priority Mail Express in its table for Alaska, Hawaii, Puerto Rico and the territories: “As of August 1, 2023, USPS will no longer process refund requests for guaranteed service on these items.” (USPS 2026 holiday deadlines, footnote 5) (The Domestic Mail Manual's list of exceptions doesn't name Puerto Rico or the U.S. Virgin Islands.) USPS's PostalPro notice of Sep 25, 2026 on offshore Priority Mail and Ground Advantage adds “Currently available expedited services for these areas will continue in the form of Priority Mail Express, which will not change as a part of these adjustments.” (USPS PostalPro notice, Sep 25, 2026, Priority Mail) Another exception covers the holidays: “The Priority Mail Express 1-Day shipment was mailed December 22 through December 25 and was delivered or delivery was attempted within 2 business days of the date of mailing.” (DMM 604.9.5.5)
• "1–3 days" is an average, for many major markets: USPS's footnote on that figure reads “For many major markets. Average number of days based on origin and destination.” (USPS service comparison, footnote 1) The day for one shipment is on the receipt, and that is the date the guarantee covers. Claiming the refund: Priority Mail Express refunds.

First-Class Mail delivery time (letters and large envelopes)

1 to 5 days, not guaranteed and without tracking. USPS's page says “Mail delivered in 1–5 days” (USPS First-Class Mail page, Features & Pricing), and when USPS rewrote its standards in 2025 it said “all First-Class Mail items will still fall within the existing 1-5-day service standard range (excluding USPS Connect Local, which has a 0-1-day standard)” (90 FR 10860). “USPS does not guarantee the delivery of First-Class Mail and USPS Ground Advantage — Retail within a specified time.” (DMM 133.2.1)

For a stamped letter mailed and delivered in the lower 48, the regulation (39 CFR 121.1) adds up the days by leg:

• Plant to plant (Leg 2): “Two service expectation days are added to First-Class Mail if the combined drive time between the originating RPDC, the destinating RPDC, and the destinating Local Processing Center (LPC) is 7 hours or less” (39 CFR 121.1(a)(2)(i)). Longer drives add 3 days (over 7 and up to 24 hours) or 4 days (over 24 and up to 45 hours), and “Five service expectation days are added to all remaining First-Class Mail pieces, except that four days are added to any such First-Class Mail for which a day is added under Leg 1.” (39 CFR 121.1(a)(2)(iv))
• Pickup to plant (Leg 1): one more day when the letter is mailed in a ZIP Code whose dispatching facility is more than 50 miles' drive from its regional plant (39 CFR 121.1(a)(1)). The total still tops out at 5 days.
• Same region ("turnaround"): “certain LPCs and all RPDCs have a 2-day standard for turnaround single piece FCM originating from 5-digit ZIP Codes 50 miles or less from the cancellation location” (USPS service standard FAQs, Q9); from more than 50 miles away it is 3 days (39 CFR 121.1(b)(3)).
• So a stamped letter's standard is 2 to 5 days. The rule's same-day and 1-day standards are for USPS Connect Local and presorted commercial mail entered at a local plant: “A same-day service standard applies to USPS Connect Local Mail pieces accepted at participating Destination Delivery Units” (39 CFR 121.1(b)(1)), and 1 day applies to eligible presorted mail accepted at its local plant (39 CFR 121.1(b)(2)). That is why the regulation's table gives First-Class Mail as 0 to 5 days (39 CFR Part 121, Appendix A, Table 1) while USPS's pages say 1–5.
• Between the lower 48 and Alaska, Hawaii or the territories, a stamped letter gets 4 or 5 days. 4 days only for a few pairs: from the Puerto Rico ZIP Codes starting 006, 007 or 009 to the lower 48, and from a lower-48 ZIP Code with no dispatching facility more than 50 miles' drive from its regional plant to Anchorage (ZIP Codes 99501 to 99539), the Hawaii ZIP Codes starting 968 or those Puerto Rico ZIP Codes (39 CFR 121.1(c)(4)). Otherwise: “A five-day service standard applies to all remaining domestic First-Class Mail pieces originating and/or destinating outside the contiguous 48 states.” (39 CFR 121.1(c)(5)) The 2 to 5 day range USPS gives for all First-Class Mail there includes presorted mail (39 CFR Part 121, Appendix A, Table 2). USPS's October 2026 changes for offshore packages leave letters alone: “These changes do not impact any Market Dominant service standards such as for First-Class Mail.” (USPS PostalPro notice, Sep 25, 2026, first paragraph)

• Tracking: USPS's comparison table answers “No. (Delivery confirmation available if you add a service such as Certified Mail)” (USPS service comparison, Compare Mail Services)
• The postmark may not be your mailing date: the Domestic Mail Manual says “If applied at a processing facility, the postmark displays the name or location of the processing facility and the date of the first automated-processing operation performed on that mailpiece.” (DMM 608.11.1) USPS's plan page adds that “the date on the postmark will not necessarily match the date on which the customer’s mailpiece was collected by a letter carrier or dropped off at a retail location” (USPS, Delivering for America, Postmarks and Postal Possession). For a same-day postmark, USPS's First-Class Mail page says to “ask a retail associate at a Post Office retail counter to hand-cancel it for free” (USPS First-Class Mail page, Postmarking & Proof of Mailing). For proof of the day you mailed: “If customers need to retain evidence of the date of mailing, they may purchase a Certificate of Mailing at the retail counter” (USPS service standard FAQs, RTO Q4). More: proof of mailing.
• Envelopes for cards and other flat items: how to ship trading cards; stamp and letter prices: USPS stamp prices.